Here's an extended quote from his first chapter. It should give you a good idea what's in store:
"For five years of my life between eleven and sixteen, I never stopped playing D&D, not even to eat. To this day, I eat one-handed. The other was always for a rule book, a fanzine or a fantasy novel. After that I played less frequently - maybe twice a week - until I was twenty. Today, other than for research for this book, I don't play at all. The legacy of the game, however, is still etched on my personality.
During the time I was playing, the nerds were my whole world. They were the people I learned to relate to while others were out talking to girls, getting sun tans, having various kinds of fun and even being bored - in short, growing up.
I knew far more about the wants and needs of a golden dragon than I ever did a girl. I was never bored, either. I was always waiting for the next game with a sense of intense anticipation, like most boys do when approaching a first date.
When I was at the gaming table I felt like I was plugged into the power grid, at an absolute peak of excitement and attention. I thought that anything that didn't give you that level of stimulation wasn't worth doing, which was a bit of a problem a few years later when it came to going to work. From what I've heard of other obsessions and addictions, they're similar, and people experience similar levels of difficulty getting over them. The details may differ, but at the root it's the same thing; an obsession is a way for damaged people to damage themselves more.
I've tried to overcome the influence my D&D years had on me and I hope I've made some progress. I have a wife I love and friends I try to treat as equals and not as competitors. Getting there's been a struggle, though. Even now I sometimes don't really feel like an adult, more a recovering adolescent."